锈蚀等级 meaning in English

rusting grade

Rust grades and preparation grades of steel surfaces before application of paints and related products
涂装前钢材表面锈蚀等级和除锈等级
Preparation of steel substrates before application of paints and related products - visual assessment of surface cleanliness - rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings
涂油漆和有关产品前钢基底预处理.表面清洁度的目视评定.未涂钢基底和全面清除原有涂层后钢基底材的锈蚀等级和处理等级
Preparation of steel substates before application of paints and related products - visual assessment of surface cleanliness - part 1 : rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings informative supplement : representative photographic examples of the change of appearance imparted to steel when blast - cleaned with different abrasives
涂装油漆和有关产品前钢材预处理.表面清洁度的目测评估.第1部分:原涂层全部清除后无涂层钢材和钢材的锈蚀等级和除锈等级及参考性补充:用不同磨料进行喷丸处理时钢材表观改变的典型样版照片